USAP Siple Dome (SDM) site lat/lon = (-81.6640,-149.0175) cell lat/lon = (-81.6600,-148.9887) Forecast initialized at 2025-11-11/12 UTC MPAS cell scale: 2.3 km FCST UTC UTC T Td Altim Spd Gust Dir Grid VVV RH1RH2RH3 T1T2T3 ACCUM HR DAY HR (C) (C) (in Hg)(kts)(kts)(deg)(deg) (*) (% wrt water) (C) (*) 0 11 12 -26.3 -29.3 29.01 8 11 31 242 000 97 92 84 -22-21-21 000 1 11 13 -27.4 -28.1 29.00 10 13 29 240 000 129 88 83 -22-21-20 000 2 11 14 -27.3 -28.2 28.99 10 14 40 251 000 124 87 85 -21-21-20 000 3 11 15 -26.0 -26.6 28.98 10 15 44 255 000 127 86 88 -21-20-20 000 4 11 16 -25.0 -25.6 28.97 9 15 50 261 001 127 84 91 -21-20-20 000 5 11 17 -24.0 -24.5 28.96 9 15 55 266 000 126 83 92 -20-20-20 000 6 11 18 -23.0 -23.8 28.95 8 14 61 272 000 121 84 89 -20-20-19 000 7 11 19 -22.1 -23.2 28.93 8 15 65 276 000 114 89 85 -19-20-19 000 8 11 20 -21.2 -22.7 28.91 9 15 67 278 000 109 92 80 -19-19-20 000 9 11 21 -20.2 -22.0 28.90 10 15 70 281 000 105 92 77 -19-19-19 000 10 11 22 -19.7 -21.7 28.89 10 14 72 283 000 102 89 72 -19-19-19 000 11 11 23 -19.3 -21.5 28.88 9 14 78 289 000 100 86 68 -18-19-19 000 12 12 00 -19.3 -21.6 28.86 8 13 84 295 000 98 81 64 -18-18-19 000 13 12 01 -19.5 -22.1 28.83 7 12 86 297 000 96 77 61 -18-18-19 000 14 12 02 -20.0 -22.4 28.82 6 10 93 304 000 98 73 58 -18-18-18 000 15 12 03 -20.8 -22.7 28.81 6 11 99 310 000 105 70 53 -17-18-18 000 16 12 04 -21.6 -23.3 28.80 6 11 103 314 000 107 69 49 -17-17-18 000 17 12 05 -21.8 -23.5 28.78 7 12 110 321 000 108 70 47 -17-17-18 000 18 12 06 -21.9 -23.6 28.75 8 14 114 325 001 109 68 44 -17-17-18 000 19 12 07 -22.5 -23.9 28.73 8 15 119 330 000 113 68 40 -17-17-17 000 20 12 08 -23.0 -24.3 28.71 8 15 120 331 000 115 67 37 -16-16-17 000 21 12 09 -23.5 -25.0 28.69 8 15 119 330 000 111 66 35 -16-16-17 000 22 12 10 -23.7 -24.4 28.67 8 15 126 337 001 123 58 33 -16-16-17 000 23 12 11 -23.8 -24.4 28.65 8 15 132 343 000 124 65 29 -16-16-16 000 24 12 12 -23.5 -24.1 28.62 8 15 137 348 000 124 68 27 -16-16-16 000 25 12 13 -23.2 -23.9 28.62 7 15 140 351 000 124 70 28 -16-15-16 000 26 12 14 -22.7 -23.4 28.60 7 14 141 352 000 123 71 31 -15-15-16 000 27 12 15 -22.0 -22.6 28.58 7 14 144 356 000 122 71 34 -15-15-16 000 28 12 16 -21.2 -21.8 28.55 6 14 150 1 000 122 72 35 -15-16-16 000 29 12 17 -20.1 -21.0 28.54 6 14 156 7 000 117 72 36 -15-15-16 000 30 12 18 -19.4 -20.3 28.53 6 13 167 18 000 115 70 37 -15-15-15 000 31 12 19 -19.1 -19.8 28.52 5 12 179 30 000 117 70 38 -15-15-15 000 32 12 20 -18.5 -19.5 28.50 6 13 182 33 001 111 65 36 -15-15-15 000 33 12 21 -18.2 -19.6 28.49 6 11 178 29 000 107 61 39 -16-15-15 000 34 12 22 -18.0 -19.4 28.49 6 10 183 34 000 106 59 37 -16-15-15 000 35 12 23 -17.8 -19.2 28.48 5 7 197 48 001 106 56 33 -16-15-15 000 36 13 00 -17.7 -19.1 28.46 3 4 207 58 000 105 55 27 -15-15-15 000 37 13 01 -17.6 -19.3 28.46 1 2 243 94 000 104 57 21 -15-15-16 000 38 13 02 -18.0 -19.8 28.45 3 3 251 102 000 103 53 20 -15-15-15 000 39 13 03 -18.6 -20.0 28.43 3 4 246 97 000 108 50 21 -16-15-15 000 40 13 04 -19.0 -19.8 28.43 1 2 254 105 000 113 45 36 -16-15-15 000 41 13 05 -19.7 -20.0 28.42 2 4 359 210 000 119 47 62 -16-15-15 000 42 13 06 -21.1 -21.7 28.41 5 7 19 230 000 121 44 82 -16-15-15 000 43 13 07 -21.8 -22.5 28.41 7 8 16 227 001 122 43 88 -15-15-15 000 44 13 08 -22.3 -23.1 28.40 7 9 4 216 002 122 42 85 -15-15-15 000 45 13 09 -22.7 -23.4 28.39 7 9 355 206 000 123 42 75 -15-15-15 000 46 13 10 -22.9 -23.7 28.38 7 9 351 202 000 123 46 65 -16-15-15 000 47 13 11 -23.2 -23.9 28.39 6 9 356 207 000 123 48 62 -16-15-16 000 48 13 12 -23.2 -24.0 28.38 6 8 358 209 000 123 44 62 -16-15-15 000 49 13 13 -22.9 -23.7 28.38 7 9 1 212 000 123 43 64 -16-15-15 000 50 13 14 -22.6 -23.2 28.38 8 10 10 221 000 124 41 67 -16-15-16 000 51 13 15 -22.7 -23.2 28.39 8 11 13 224 000 124 42 71 -16-15-16 000 52 13 16 -22.5 -23.0 28.39 7 10 17 228 000 124 43 76 -16-15-16 000 53 13 17 -22.2 -22.7 28.40 7 10 21 232 000 123 43 80 -16-15-16 000 54 13 18 -21.6 -22.3 28.40 6 9 21 232 000 118 45 81 -16-15-16 000 55 13 19 -20.6 -21.8 28.41 6 9 25 236 000 112 47 84 -16-15-16 000 56 13 20 -19.9 -21.3 28.42 6 8 28 239 000 108 50 85 -16-16-16 000 57 13 21 -19.4 -20.9 28.44 6 7 30 241 000 106 52 89 -16-16-16 000 58 13 22 -18.6 -20.6 28.45 4 6 25 236 000 101 51 91 -16-16-16 000 59 13 23 -17.9 -20.3 28.46 3 4 43 254 001 96 49 89 -16-16-17 000 60 14 00 -17.6 -20.4 28.48 2 3 66 277 -002 93 54 86 -16-16-17 000 61 14 01 -17.5 -20.0 28.49 2 3 122 333 001 95 52 88 -16-16-16 000 62 14 02 -17.8 -20.1 28.50 3 3 131 342 000 96 54 90 -16-16-16 000 63 14 03 -18.3 -20.4 28.51 4 5 136 347 000 99 59 90 -16-15-16 000 64 14 04 -19.0 -20.7 28.52 3 5 132 343 000 104 66 91 -15-15-16 000 65 14 05 -19.0 -21.0 28.53 3 4 113 324 000 100 73 95 -15-16-16 000 66 14 06 -19.2 -22.0 28.54 3 4 113 324 000 93 85 98 -16-16-16 000 67 14 07 -19.5 -22.3 28.56 3 4 118 329 000 93 94 95 -15-15-16 000 68 14 08 -19.6 -22.7 28.58 2 4 115 326 000 90 98100 -15-15-15 000 69 14 09 -19.6 -22.9 28.59 1 3 130 341 000 88 98 96 -15-15-16 000 70 14 10 -19.8 -22.6 28.60 2 4 117 328 000 93100 86 -15-15-16 000 71 14 11 -20.6 -22.3 28.62 3 5 94 305 -001 104104 73 -16-16-16 000 72 14 12 -20.2 -22.3 28.64 3 3 66 277 000 99102 79 -16-15-16 000 73 14 13 -19.5 -23.4 28.65 3 3 343 194 001 83 99 79 -15-15-16 000 74 14 14 -19.3 -23.3 28.67 3 3 336 187 001 83102 81 -15-15-15 000 75 14 15 -20.2 -23.5 28.68 5 6 14 225 000 87106 82 -16-16-15 000 76 14 16 -19.6 -22.8 28.69 3 4 330 181 002 89106 73 -16-16-16 000 77 14 17 -19.3 -22.6 28.71 4 4 324 175 000 86104 73 -16-16-16 000 78 14 18 -18.7 -22.0 28.72 2 2 321 172 -001 84103 72 -16-16-16 000 79 14 19 -18.3 -21.6 28.74 2 2 338 189 000 89104 70 -16-16-16 000 80 14 20 -18.2 -20.6 28.76 2 2 1 212 000 96100 72 -17-17-17 000 81 14 21 -18.7 -20.8 28.77 2 2 341 192 000 100 94 72 -18-17-17 000 82 14 22 -18.7 -20.7 28.79 2 2 344 195 -002 101 97 78 -17-17-17 000 83 14 23 -18.6 -20.6 28.80 3 3 18 229 -001 100 98 78 -17-17-17 000 84 15 00 -18.8 -20.8 28.81 5 5 26 237 -001 101 93 81 -17-17-17 000 85 15 01 -19.0 -21.0 28.82 6 6 27 238 000 102 88 80 -17-17-17 000 86 15 02 -19.2 -21.2 28.84 5 5 28 239 001 102 81 81 -17-17-17 000 87 15 03 -19.6 -21.8 28.84 5 6 33 244 001 100 83 75 -17-17-17 000 88 15 04 -20.1 -22.2 28.85 5 7 42 253 000 101 88 90 -16-16-17 000 89 15 05 -20.5 -22.5 28.87 7 9 50 261 000 104 80 88 -16-16-17 000 90 15 06 -21.1 -22.6 28.87 7 10 51 262 -001 110 71 88 -16-16-16 000 91 15 07 -21.6 -22.6 28.88 8 10 50 261 000 116 51 76 -16-16-16 000 92 15 08 -22.1 -23.5 28.89 8 10 50 261 000 112 40 37 -16-15-16 000 93 15 09 -22.5 -24.2 28.89 8 10 50 261 000 107 36 24 -16-15-16 000 94 15 10 -22.5 -24.0 28.90 8 10 52 263 001 109 39 23 -16-15-16 000 95 15 11 -22.5 -23.6 28.91 8 11 55 266 002 114 39 39 -16-15-15 000 96 15 12 -21.9 -22.5 28.92 8 11 54 265 001 122 51 73 -15-15-15 000 97 15 13 -21.6 -22.4 28.92 8 12 50 261 000 119 55 78 -15-14-15 000 98 15 14 -20.9 -22.2 28.92 9 13 51 263 000 112 62 77 -15-14-15 000 99 15 15 -20.2 -21.3 28.92 9 13 47 258 000 114 71 79 -15-14-15 000 100 15 16 -19.8 -20.7 28.91 8 12 48 259 -001 115 75 70 -15-15-15 000 101 15 17 -19.4 -20.2 28.91 8 12 53 264 000 116 76 39 -16-16-16 000 102 15 18 -18.8 -20.1 28.91 7 12 54 265 000 109 89 23 -16-16-16 000 103 15 19 -18.2 -19.8 28.90 8 13 52 263 001 104 82 32 -17-16-15 000 104 15 20 -18.1 -19.6 28.90 10 15 50 261 -003 105 82 40 -17-16-15 000 105 15 21 -17.8 -19.3 28.90 12 17 39 250 -005 106 90 24 -17-16-15 000 106 15 22 -17.3 -18.7 28.89 9 15 44 255 -007 105 85 55 -16-16-15 000 107 15 23 -16.3 -18.3 28.88 9 14 51 262 -005 99 83 72 -16-15-14 000 108 16 00 -15.8 -18.1 28.87 8 13 65 276 -001 96 83 68 -15-15-13 000 109 16 01 -15.7 -18.0 28.86 7 11 89 300 001 95 77 74 -15-15-14 000 110 16 02 -16.0 -18.3 28.84 6 9 109 320 001 95 72 78 -15-15-14 000 111 16 03 -16.7 -18.7 28.82 5 9 113 324 000 99 79 59 -15-15-14 000 112 16 04 -17.5 -19.5 28.81 5 9 104 315 000 100 85 51 -15-15-15 000 113 16 05 -18.1 -19.9 28.79 5 8 100 311 000 102 87 51 -15-16-15 000 114 16 06 -18.1 -19.7 28.78 4 6 99 310 -001 103 90 49 -15-16-16 000 115 16 07 -18.4 -19.6 28.76 3 5 94 305 000 107 89 49 -15-16-16 000 116 16 08 -19.9 -20.6 28.75 5 6 74 285 -001 114 94 48 -16-16-16 000 117 16 09 -20.9 -21.5 28.75 8 10 56 267 000 122 97 52 -16-16-15 000 118 16 10 -21.0 -21.6 28.74 8 13 49 260 000 122104 39 -16-17-16 000 119 16 11 -21.0 -21.6 28.73 8 13 49 260 000 122106 59 -16-17-16 000 120 16 12 -21.0 -21.5 28.72 8 14 60 271 -003 122108 66 -17-17-17 000 * NOTES on units: VVV (vertical velocity) is given as tenths of a microbar per second at 700 hPa, with positive values indicating upward motion; ACCUM (accumulated precipitation, past 3h) is given as hundredths of a millimeter; RH1, RH2, and RH3 are the % RH at the surface, 1000', and 3000', respectively; T1, T2, and T3 are the temperatures at 500', 1000', and 1500', respectively. Gust is estimated according to the NCEP HRRR gust algorithm.